Render iqm models in GL.
There are still many issues to sort out, but the basics are working. Problems: rendered fullbright (no lighting done) normals are ignored extra textures (glow etc) not used/loaded 4 models on the screen don't seem to be a problem.
This commit is contained in:
Bill Currie
parent
f958afad53
commit
c3801d46e5
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@ -31,11 +31,19 @@
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#define __QF_GL_qf_iqm_h
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#include "QF/iqm.h"
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#include "QF/render.h"
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typedef struct glsliqm_s {
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int *textures;
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iqmblend_t *blend_palette; // includes base data from iqm
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int palette_size; // includes base data from iqm
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iqmvertexarray *position;
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iqmvertexarray *texcoord;
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iqmvertexarray *normal;
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iqmvertexarray *bindices;
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iqmvertexarray *color;
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} gliqm_t;
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void gl_R_DrawIQMModel (entity_t *ent);
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#endif//__QF_GL_qf_iqm_h
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@ -98,9 +98,22 @@ gl_Mod_IQMFinish (model_t *mod)
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{
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iqm_t *iqm = (iqm_t *) mod->aliashdr;
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gliqm_t *gl;
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int i;
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mod->clear = gl_iqm_clear;
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iqm->extra_data = gl = calloc (1, sizeof (gliqm_t));
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gl_iqm_load_textures (iqm);
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gl->blend_palette = Mod_IQMBuildBlendPalette (iqm, &gl->palette_size);
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for (i = 0; i < iqm->num_arrays; i++) {
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if (iqm->vertexarrays[i].type == IQM_POSITION)
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gl->position = &iqm->vertexarrays[i];
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if (iqm->vertexarrays[i].type == IQM_TEXCOORD)
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gl->texcoord = &iqm->vertexarrays[i];
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if (iqm->vertexarrays[i].type == IQM_NORMAL)
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gl->normal = &iqm->vertexarrays[i];
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if (iqm->vertexarrays[i].type == IQM_BLENDINDEXES)
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gl->bindices = &iqm->vertexarrays[i];
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if (iqm->vertexarrays[i].type == IQM_COLOR)
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gl->color = &iqm->vertexarrays[i];
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}
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}
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@ -7,8 +7,8 @@ noinst_LTLIBRARIES= libgl.la
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gl_src = \
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gl_draw.c gl_dyn_lights.c gl_dyn_part.c gl_dyn_textures.c \
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gl_fog.c gl_graph.c gl_lightmap.c gl_mod_alias.c gl_mod_sprite.c \
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gl_rmain.c gl_rmisc.c gl_rsurf.c gl_screen.c gl_sky.c \
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gl_fog.c gl_graph.c gl_lightmap.c gl_mod_alias.c gl_mod_iqm.c \
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gl_mod_sprite.c gl_rmain.c gl_rmisc.c gl_rsurf.c gl_screen.c gl_sky.c \
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gl_sky_clip.c gl_textures.c gl_warp.c qfgl_ext.c vid_common_gl.c vtxarray.c
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libgl_la_SOURCES= $(gl_src)
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@ -0,0 +1,130 @@
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/*
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gl_mod_iqm.c
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GL IQM rendering
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Copyright (C) 2012 Bill Currie <bill@taniwha.org>
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Author: Bill Currie <bill@taniwha.org>
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Date: 2012/5/17
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#define NH_DEFINE
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#include "namehack.h"
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include "QF/cvar.h"
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#include "QF/render.h"
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#include "QF/skin.h"
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#include "QF/sys.h"
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#include "QF/GL/defines.h"
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#include "QF/GL/funcs.h"
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#include "QF/GL/qf_iqm.h"
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#include "QF/GL/qf_rmain.h"
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#include "QF/GL/qf_vid.h"
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#include "r_internal.h"
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//FIXME this is really lame: normals are ignored. also, it could be
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//faster
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static void
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gl_draw_iqm_frame (iqm_t *iqm, gliqm_t *gl, iqmframe_t *frame, iqmmesh *mesh)
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{
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byte *vert;
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uint32_t i, j;
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qfglBegin (GL_TRIANGLES);
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for (i = 0; i < mesh->num_triangles; i++) {
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int vind = (mesh->first_triangle + i) * 3;
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for (j = 0; j < 3; j++) {
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vert = iqm->vertices + iqm->elements[vind + j] * iqm->stride;
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if (gl->texcoord)
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qfglTexCoord2fv ((float *) (vert + gl->texcoord->offset));
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if (gl->color)
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qfglColor4bv ((GLbyte *) (vert + gl->color->offset));
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if (gl->bindices) {
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vec3_t position;
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uint32_t bind = *(uint32_t *) (vert + gl->bindices->offset);
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vec_t *f = (vec_t *) &frame[bind];
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float *v = (float *) (vert + gl->position->offset);
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Mat4MultVec (f, v, position);
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VectorScale (position, 8, position);
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qfglVertex3fv (position);
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} else {
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qfglVertex3fv ((float *) (vert + gl->position->offset));
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}
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}
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}
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qfglEnd ();
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}
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void
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gl_R_DrawIQMModel (entity_t *ent)
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{
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model_t *model = ent->model;
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iqm_t *iqm = (iqm_t *) model->aliashdr;
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gliqm_t *gl = (gliqm_t *) iqm->extra_data;
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int data_size;
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float blend;
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iqmframe_t *frame;
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int i, j;
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model = ent->model;
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data_size = (gl->palette_size - iqm->num_joints) * sizeof (iqmframe_t);
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blend = R_IQMGetLerpedFrames (ent, iqm);
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frame = R_IQMBlendFrames (iqm, ent->pose1, ent->pose2, blend, data_size);
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for (i = iqm->num_joints; i < gl->palette_size; i++) {
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vec_t *mat = (vec_t *) &frame[i];
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iqmblend_t *blend = &gl->blend_palette[i];
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vec_t *f;
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f = (vec_t *) &frame[blend->indices[0]];
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Mat4Scale (f, blend->weights[0] / 255.0, mat);
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for (j = 1; j < 4; j++) {
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if (!blend->weights[j])
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break;
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f = (vec_t *) &frame[blend->indices[j]];
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Mat4MultAdd (mat, blend->weights[j] / 255.0, f, mat);
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}
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}
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qfglPushMatrix ();
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gl_R_RotateForEntity (ent);
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qfglScalef (ent->scale, ent->scale, ent->scale);
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for (i = 0; i < iqm->num_meshes; i++) {
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qfglBindTexture (GL_TEXTURE_2D, gl->textures[i]);
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gl_draw_iqm_frame (iqm, gl, frame, &iqm->meshes[i]);
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}
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qfglPopMatrix ();
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}
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@ -55,6 +55,7 @@
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#include "QF/GL/defines.h"
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#include "QF/GL/funcs.h"
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#include "QF/GL/qf_draw.h"
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#include "QF/GL/qf_iqm.h"
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#include "QF/GL/qf_rlight.h"
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#include "QF/GL/qf_rmain.h"
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#include "QF/GL/qf_rsurf.h"
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@ -214,7 +215,7 @@ R_DrawEntitiesOnList (void)
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} else if (gl_tess) {
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qfglEnable (GL_NORMALIZE);
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}
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for (ent = r_ent_queue; ent; ent = ent->next) {
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if (ent->model->type != mod_alias)
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continue;
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@ -227,7 +228,6 @@ R_DrawEntitiesOnList (void)
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qfglDisable (GL_NORMALIZE);
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qfglDisable (GL_LIGHTING);
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qfglDisable (GL_CULL_FACE);
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if (gl_tess)
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qfglDisable (GL_PN_TRIANGLES_ATI);
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if (gl_affinemodels->int_val)
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@ -248,6 +248,16 @@ R_DrawEntitiesOnList (void)
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qglActiveTexture (gl_mtex_enum + 0);
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}
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for (ent = r_ent_queue; ent; ent = ent->next) {
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if (ent->model->type != mod_iqm)
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continue;
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currententity = ent;
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gl_R_DrawIQMModel (currententity);
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}
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qfglColor3ubv (color_white);
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qfglDisable (GL_CULL_FACE);
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qfglEnable (GL_ALPHA_TEST);
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if (gl_va_capable)
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qfglInterleavedArrays (GL_T2F_C4UB_V3F, 0, gl_spriteVertexArray);
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