OrdinaryMagician/vkdoom_m
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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
commit e865ba60f5
4 changed files with 49 additions and 1 deletions
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32
src/polyrenderer/scene/poly_particle.cpp
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@ -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)];
}