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Eevee: Add debug visual for Cascaded Shadow Maps

This commit is contained in:
Clément Foucault 2018-07-16 20:08:02 +02:00
parent db374d6658
commit d5f048f883
1 changed files with 17 additions and 2 deletions
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19
source/blender/draw/engines/eevee/eevee_lights.c
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@ -37,6 +37,8 @@
#define SHADOW_CASTER_ALLOC_CHUNK 16
// #define DEBUG_CSM
static struct {
struct GPUShader *shadow_sh;
struct GPUShader *shadow_store_cube_sh[SHADOW_METHOD_MAX];
@ -871,13 +873,13 @@ static void eevee_shadow_cascade_setup(
/* Given 8 frustum corners */
float corners[8][3] = {
/* Near Cap */
{-1.0f, -1.0f, splits_start_ndc[c]},
{ 1.0f, -1.0f, splits_start_ndc[c]},
{-1.0f, -1.0f, splits_start_ndc[c]},
{-1.0f, 1.0f, splits_start_ndc[c]},
{ 1.0f, 1.0f, splits_start_ndc[c]},
/* Far Cap */
{-1.0f, -1.0f, splits_end_ndc[c]},
{ 1.0f, -1.0f, splits_end_ndc[c]},
{-1.0f, -1.0f, splits_end_ndc[c]},
{-1.0f, 1.0f, splits_end_ndc[c]},
{ 1.0f, 1.0f, splits_end_ndc[c]}
};
@ -890,6 +892,15 @@ static void eevee_shadow_cascade_setup(
float center[3];
frustum_min_bounding_sphere(corners, center, &(sh_data->radius[c]));
#ifdef DEBUG_CSM
float dbg_col[4] = {0.0f, 0.0f, 0.0f, 1.0f};
if (c < 3) {
dbg_col[c] = 1.0f;
}
DRW_debug_bbox((BoundBox *)&corners, dbg_col);
DRW_debug_sphere(center, sh_data->radius[c], dbg_col);
#endif
/* Project into lightspace */
mul_m4_v3(viewmat, center);
@ -919,6 +930,10 @@ static void eevee_shadow_cascade_setup(
mul_m4_m4m4(sh_data->viewprojmat[c], projmat, viewmat);
mul_m4_m4m4(cascade_data->shadowmat[c], texcomat, sh_data->viewprojmat[c]);
#ifdef DEBUG_CSM
DRW_debug_m4_as_bbox(sh_data->viewprojmat[c], dbg_col, true);
#endif
}
ubo_data->bias = 0.05f * la->bias;