Half-Life-RTX
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xash3d-fwgs
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rt: hack all blending as additive 

this is not correct, but at  least we get to see something
need to figure out how should blending work in rt:
- translucent materials that absorb light
- reflective+refractive
- etc
This commit is contained in:
Ivan 'provod' Avdeev 2023-02-25 13:22:56 -08:00
parent 3e2689b7f8
commit 1d17e55101
1 changed files with 32 additions and 2 deletions
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34
ref/vk/vk_ray_model.c
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@ -249,6 +249,20 @@ vk_ray_model_t* VK_RayModelCreate( vk_ray_model_init_t args ) {
/* gEngine.Con_Reportf("Loading model %s, geoms: %d\n", args.model->debug_name, args.model->num_geometries); */
qboolean HACK_additive_emissive = false;
switch (args.model->render_type) {
case kVkRenderType_A_1mA_RW: // blend: scr*a + dst*(1-a), depth: RW
case kVkRenderType_A_1mA_R: // blend: scr*a + dst*(1-a), depth test
HACK_additive_emissive = true;
break;
case kVkRenderType_A_1: // blend: scr*a + dst, no depth test or write
case kVkRenderType_A_1_R: // blend: scr*a + dst, depth test
case kVkRenderType_1_1_R: // blend: scr + dst, depth test
HACK_additive_emissive = true;
break;
}
for (int i = 0; i < args.model->num_geometries; ++i) {
vk_render_geometry_t *mg = args.model->geometries + i;
const uint32_t prim_count = mg->element_count / 3;
@ -299,6 +313,11 @@ vk_ray_model_t* VK_RayModelCreate( vk_ray_model_init_t args ) {
kusochki[i].tex_base_color &= (~KUSOK_MATERIAL_FLAG_SKYBOX);
}
if (HACK_additive_emissive && mg->material != kXVkMaterialEmissive) {
mg->material = kXVkMaterialEmissive;
VectorCopy(args.model->color, mg->emissive);
}
applyMaterialToKusok(kusochki + i, mg, args.model->color, false);
Matrix4x4_LoadIdentity(kusochki[i].prev_transform);
}
@ -421,7 +440,6 @@ static void computeConveyorSpeed(const color24 rendercolor, int tex_index, vec2_
}
void VK_RayFrameAddModel( vk_ray_model_t *model, const vk_render_model_t *render_model, const matrix3x4 *transform_row) {
qboolean HACK_reflective = false;
vk_ray_draw_model_t* draw_model = g_ray_model_state.frame.models + g_ray_model_state.frame.num_models;
ASSERT(vk_core.rtx);
@ -442,6 +460,9 @@ void VK_RayFrameAddModel( vk_ray_model_t *model, const vk_render_model_t *render
memcpy(draw_model->transform_row, *transform_row, sizeof(draw_model->transform_row));
}
qboolean HACK_reflective = false;
qboolean HACK_additive_emissive = false;
switch (render_model->render_type) {
case kVkRenderTypeSolid:
draw_model->material_mode = MaterialMode_Opaque;
@ -451,12 +472,14 @@ void VK_RayFrameAddModel( vk_ray_model_t *model, const vk_render_model_t *render
// FIXME proper trasnlucency
//HACK_reflective = true;
//draw_model->material_mode = MaterialMode_Refractive;
HACK_additive_emissive = true;
draw_model->material_mode = MaterialMode_Additive;
break;
case kVkRenderType_A_1: // blend: scr*a + dst, no depth test or write
case kVkRenderType_A_1_R: // blend: scr*a + dst, depth test
case kVkRenderType_1_1_R: // blend: scr + dst, depth test
HACK_additive_emissive = true;
draw_model->material_mode = MaterialMode_Additive;
break;
@ -490,7 +513,14 @@ void VK_RayFrameAddModel( vk_ray_model_t *model, const vk_render_model_t *render
vk_kusok_data_t *const kusochki = kusok_staging.ptr;
for (int i = 0; i < render_model->num_geometries; ++i) {
const vk_render_geometry_t *geom = render_model->geometries + i;
vk_render_geometry_t *geom = render_model->geometries + i;
// FIXME an impedance mismatch: render_type is per-model, while materials and emissive color are per-geom
if (HACK_additive_emissive && geom->material != kXVkMaterialEmissive) {
geom->material = kXVkMaterialEmissive;
VectorCopy(render_model->color, geom->emissive);
}
applyMaterialToKusok(kusochki + i, geom, render_model->color, HACK_reflective);
Matrix4x4_Copy((kusochki + i)->prev_transform, render_model->prev_transform);
}