ioquake/ioq3
0
0
Fork 0
mirror of https://github.com/ioquake/ioq3.git synced 2025-05-31 09:01:54 +00:00
Code Issues Projects Releases Packages Wiki Activity

#5812 - Use refdef's coordinates when drawing to screen shadow fbo, and separate depth texture and screen texture coordinates in glsl shaders.

Browse source
This commit is contained in:
James Canete 2012-12-06 01:55:45 +00:00
parent 736e1d5170
commit 374c551404
5 changed files with 33 additions and 32 deletions
Download patch file Download diff file Expand all files Collapse all files

36
code/rend2/tr_backend.c
View file

@ -1245,21 +1245,37 @@ const void *RB_DrawSurfs( const void *data ) {
{
vec4_t quadVerts[4];
vec2_t texCoords[4];
vec4_t box;
FBO_Bind(tr.screenShadowFbo);
qglViewport(0, 0, tr.screenShadowFbo->width, tr.screenShadowFbo->height);
qglScissor(0, 0, tr.screenShadowFbo->width, tr.screenShadowFbo->height);
box[0] = (backEnd.refdef.x ) * tr.screenShadowFbo->width / (float)glConfig.vidWidth;
box[1] = (backEnd.refdef.y ) * tr.screenShadowFbo->height / (float)glConfig.vidHeight;
box[2] = (backEnd.refdef.width ) * tr.screenShadowFbo->width / (float)glConfig.vidWidth;
box[3] = (backEnd.refdef.height) * tr.screenShadowFbo->height / (float)glConfig.vidHeight;
VectorSet4(quadVerts[0], -1, 1, 0, 1);
VectorSet4(quadVerts[1], 1, 1, 0, 1);
VectorSet4(quadVerts[2], 1, -1, 0, 1);
VectorSet4(quadVerts[3], -1, -1, 0, 1);
qglViewport(box[0], box[1], box[2], box[3]);
qglScissor(box[0], box[1], box[2], box[3]);
texCoords[0][0] = 0; texCoords[0][1] = 1;
texCoords[1][0] = 1; texCoords[1][1] = 1;
texCoords[2][0] = 1; texCoords[2][1] = 0;
texCoords[3][0] = 0; texCoords[3][1] = 0;
box[0] = (backEnd.refdef.x ) / (float)glConfig.vidWidth;
box[1] = (backEnd.refdef.y ) / (float)glConfig.vidHeight;
box[2] = (backEnd.refdef.x + backEnd.refdef.width ) / (float)glConfig.vidWidth;
box[3] = (backEnd.refdef.y + backEnd.refdef.height) / (float)glConfig.vidHeight;
texCoords[0][0] = box[0]; texCoords[0][1] = box[3];
texCoords[1][0] = box[2]; texCoords[1][1] = box[3];
texCoords[2][0] = box[2]; texCoords[2][1] = box[1];
texCoords[3][0] = box[0]; texCoords[3][1] = box[1];
box[0] = -1.0f;
box[1] = -1.0f;
box[2] = 1.0f;
box[3] = 1.0f;
VectorSet4(quadVerts[0], box[0], box[3], 0, 1);
VectorSet4(quadVerts[1], box[2], box[3], 0, 1);
VectorSet4(quadVerts[2], box[2], box[1], 0, 1);
VectorSet4(quadVerts[3], box[0], box[1], 0, 1);
GL_State( GLS_DEPTHTEST_DISABLE );