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- support particle styles in softpoly

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This commit is contained in:
Magnus Norddahl 2017-03-27 11:33:16 +02:00
parent bed559f763
commit e865ba60f5
4 changed files with 49 additions and 1 deletions
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8
src/polyrenderer/drawers/poly_draw_args.cpp
View file

@ -45,6 +45,14 @@ void PolyDrawArgs::SetClipPlane(const PolyClipPlane &plane)
mClipPlane[3] = plane.D;
}
void PolyDrawArgs::SetTexture(const uint8_t *texels, int width, int height)
{
mTexturePixels = texels;
mTextureWidth = width;
mTextureHeight = height;
mTranslation = nullptr;
}
void PolyDrawArgs::SetTexture(FTexture *texture)
{
mTextureWidth = texture->GetWidth();

1
src/polyrenderer/drawers/poly_draw_args.h
View file

@ -49,6 +49,7 @@ class PolyDrawArgs
{
public:
void SetClipPlane(const PolyClipPlane &plane);
void SetTexture(const uint8_t *texels, int width, int height);
void SetTexture(FTexture *texture);
void SetTexture(FTexture *texture, uint32_t translationID, bool forcePal = false);
void SetLight(FSWColormap *basecolormap, uint32_t lightlevel, double globVis, bool fixed);

32
src/polyrenderer/scene/poly_particle.cpp
View file

@ -29,6 +29,8 @@
#include "polyrenderer/poly_renderer.h"
#include "polyrenderer/scene/poly_light.h"
EXTERN_CVAR(Int, gl_particles_style)
void RenderPolyParticle::Render(const TriMatrix &worldToClip, const PolyClipPlane &clipPlane, particle_t *particle, subsector_t *sub, uint32_t subsectorDepth, uint32_t stencilValue)
{
DVector3 pos = particle->Pos;
@ -76,12 +78,40 @@ void RenderPolyParticle::Render(const TriMatrix &worldToClip, const PolyClipPlan
args.SetSubsectorDepth(subsectorDepth);
args.SetSubsectorDepthTest(true);
args.SetColor(particle->color | 0xff000000, particle->color >> 24);
args.SetStyle(TriBlendMode::AlphaBlend, particle->alpha, 1.0 - particle->alpha);
args.SetStyle(TriBlendMode::Shaded, particle->alpha, 1.0 - particle->alpha);
args.SetTransform(&worldToClip);
args.SetFaceCullCCW(true);
args.SetStencilTestValue(stencilValue);
args.SetWriteStencil(false);
args.SetWriteSubsectorDepth(false);
args.SetClipPlane(clipPlane);
args.SetTexture(GetParticleTexture(), ParticleTextureSize, ParticleTextureSize);
args.DrawArray(vertices, 4, PolyDrawMode::TriangleFan);
}
uint8_t *RenderPolyParticle::GetParticleTexture()
{
static uint8_t particle_texture[NumParticleTextures][ParticleTextureSize * ParticleTextureSize];
static bool first_call = true;
if (first_call)
{
double center = ParticleTextureSize * 0.5f;
for (int y = 0; y < ParticleTextureSize; y++)
{
for (int x = 0; x < ParticleTextureSize; x++)
{
double dx = (center - x - 0.5f) / center;
double dy = (center - y - 0.5f) / center;
double dist2 = dx * dx + dy * dy;
double round_alpha = clamp<double>(1.7f - dist2 * 1.7f, 0.0f, 1.0f);
double smooth_alpha = clamp<double>(1.1f - dist2 * 1.1f, 0.0f, 1.0f);
particle_texture[0][x + y * ParticleTextureSize] = 255;
particle_texture[1][x + y * ParticleTextureSize] = (int)(round_alpha * 255.0f + 0.5f);
particle_texture[2][x + y * ParticleTextureSize] = (int)(smooth_alpha * 255.0f + 0.5f);
}
}
first_call = false;
}
return particle_texture[MIN<int>(gl_particles_style, NumParticleTextures)];
}

9
src/polyrenderer/scene/poly_particle.h
View file

@ -29,4 +29,13 @@ class RenderPolyParticle
{
public:
void Render(const TriMatrix &worldToClip, const PolyClipPlane &clipPlane, particle_t *particle, subsector_t *sub, uint32_t subsectorDepth, uint32_t stencilValue);
private:
static uint8_t *GetParticleTexture();
enum
{
NumParticleTextures = 3,
ParticleTextureSize = 64
};
};