Differential D13910 Diff 47467 source/blender/draw/engines/workbench/shaders/workbench_shadow_caps_geom.glsl

Changeset View

Standalone View

source/blender/draw/engines/workbench/shaders/workbench_shadow_caps_geom.glsl

#ifdef GPU_ARB_gpu_shader5		#ifdef GPU_ARB_gpu_shader5
# define USE_INVOC_EXT		# define USE_INVOC_EXT
#endif		#endif

#ifdef DOUBLE_MANIFOLD
# ifdef USE_INVOC_EXT
# define invoc_len 2
# else
# define vert_len 6
# endif
#else
# ifdef USE_INVOC_EXT
# define invoc_len 2
# else
# define vert_len 6
# endif
#endif

#ifdef USE_INVOC_EXT
layout(triangles, invocations = invoc_len) in;
layout(triangle_strip, max_vertices = 3) out;
#else
layout(triangles) in;
layout(triangle_strip, max_vertices = vert_len) out;
#endif

uniform vec3 lightDirection = vec3(0.57, 0.57, -0.57);

in VertexData
{
vec3 pos; /* local position */
vec4 frontPosition; /* final ndc position */
vec4 backPosition;
}
vData[];

vec4 get_pos(int v, bool backface)		vec4 get_pos(int v, bool backface)
{		{
return (backface) ? vData[v].backPosition : vData[v].frontPosition;		return (backface) ? vData[v].backPosition : vData[v].frontPosition;
}		}

void emit_cap(const bool front, bool reversed)		void emit_cap(const bool front, bool reversed)
{		{
if (front) {		if (front) {
Show All 24 Lines	void main()
float facing = dot(n, lightDirection);		float facing = dot(n, lightDirection);

bool backface = facing > 0.0;		bool backface = facing > 0.0;

#ifdef DOUBLE_MANIFOLD		#ifdef DOUBLE_MANIFOLD
/* In case of non manifold geom, we only increase/decrease		/* In case of non manifold geom, we only increase/decrease
* the stencil buffer by one but do every faces as they were facing the light. */		* the stencil buffer by one but do every faces as they were facing the light. */
bool invert = backface;		bool invert = backface;
		const bool is_manifold = false;
#else		#else
const bool invert = false;		const bool invert = false;
if (!backface) {		const bool is_manifold = true;
#endif		#endif

		if (!is_manifold \|\| !backface) {
#ifdef USE_INVOC_EXT		#ifdef USE_INVOC_EXT
bool do_front = (gl_InvocationID & 1) == 0;		bool do_front = (gl_InvocationID & 1) == 0;
emit_cap(do_front, invert);		emit_cap(do_front, invert);
#else		#else
emit_cap(true, invert);		emit_cap(true, invert);
emit_cap(false, invert);		emit_cap(false, invert);
#endif		#endif
#ifndef DOUBLE_MANIFOLD
}		}
#endif
}		}