Commit: 310593def13f08282534a4820bdbddae4741a297
Author: Clément Foucault
Date: Wed Feb 15 13:32:35 2017 +0100
Branches: blender2.8
https://developer.blender.org/rB310593def13f08282534a4820bdbddae4741a297
Clay Engine: Support vertex normals (smooth shading), no face normals yet.
===================================================================
M source/blender/blenkernel/BKE_mesh_render.h
M source/blender/blenkernel/intern/mesh_render.c
M source/blender/draw/engines/clay/clay.c
M source/blender/draw/engines/clay/shaders/clay_frag.glsl
M source/blender/draw/intern/draw_cache.c
===================================================================
diff --git a/source/blender/blenkernel/BKE_mesh_render.h
b/source/blender/blenkernel/BKE_mesh_render.h
index 29787dcfda..0538bac2dc 100644
--- a/source/blender/blenkernel/BKE_mesh_render.h
+++ b/source/blender/blenkernel/BKE_mesh_render.h
@@ -36,6 +36,7 @@ void BKE_mesh_batch_cache_dirty(struct Mesh *me);
void BKE_mesh_batch_cache_free(struct Mesh *me);
struct Batch *BKE_mesh_batch_cache_get_all_edges(struct Mesh *me);
struct Batch *BKE_mesh_batch_cache_get_all_triangles(struct Mesh *me);
+struct Batch *BKE_mesh_batch_cache_get_triangles_with_normals(struct Mesh *me);
struct Batch *BKE_mesh_batch_cache_get_all_verts(struct Mesh *me);
struct Batch *BKE_mesh_batch_cache_get_fancy_edges(struct Mesh *me);
struct Batch *BKE_mesh_batch_cache_get_overlay_edges(struct Mesh *me);
diff --git a/source/blender/blenkernel/intern/mesh_render.c
b/source/blender/blenkernel/intern/mesh_render.c
index fd0f49810f..5c3c7b51ca 100644
--- a/source/blender/blenkernel/intern/mesh_render.c
+++ b/source/blender/blenkernel/intern/mesh_render.c
@@ -231,6 +231,7 @@ typedef struct MeshBatchCache {
Batch *all_edges;
Batch *all_triangles;
+ Batch *triangles_with_normals; /* owns its vertex buffer */
Batch *fancy_edges; /* owns its vertex buffer (not shared) */
Batch *overlay_edges; /* owns its vertex buffer */
@@ -401,6 +402,10 @@ void BKE_mesh_batch_cache_free(Mesh *me)
if (cache->edges_in_order) ElementList_discard(cache->edges_in_order);
if (cache->triangles_in_order)
ElementList_discard(cache->triangles_in_order);
+ if (cache->triangles_with_normals) {
+ Batch_discard_all(cache->triangles_with_normals);
+ }
+
if (cache->fancy_edges) {
Batch_discard_all(cache->fancy_edges);
}
@@ -437,6 +442,57 @@ Batch *BKE_mesh_batch_cache_get_all_triangles(Mesh *me)
return cache->all_triangles;
}
+Batch *BKE_mesh_batch_cache_get_triangles_with_normals(Mesh *me)
+{
+ MeshBatchCache *cache = mesh_batch_cache_get(me);
+
+ if (cache->triangles_with_normals == NULL) {
+ static VertexFormat format = { 0 };
+ static unsigned pos_id, nor_id;
+ unsigned int vidx = 0;
+ if (format.attrib_ct == 0) {
+ /* initialize vertex format */
+ pos_id = add_attrib(&format, "pos", GL_FLOAT, 3,
KEEP_FLOAT);
+ nor_id = add_attrib(&format, "nor", GL_SHORT, 3,
NORMALIZE_INT_TO_FLOAT);
+ }
+
+ const MVert *verts = mesh_render_get_array_vert(me);
+ const int tessface_ct = mesh_render_get_num_faces(me);
+ MFace *tessfaces = mesh_render_get_array_face(me);
+
+ VertexBuffer *vbo = VertexBuffer_create_with_format(&format);
+ VertexBuffer_allocate_data(vbo, tessface_ct * 2 * 3); /* up to
2 triangles per tessface */
+
+ for (int i = 0; i < tessface_ct; ++i) {
+ const MFace *tess = tessfaces + i;
+
+ /* TODO get real face normals */
+
+ setAttrib(vbo, nor_id, vidx, &verts[tess->v1].no);
+ setAttrib(vbo, pos_id, vidx++, &verts[tess->v1].co);
+ setAttrib(vbo, nor_id, vidx, &verts[tess->v2].no);
+ setAttrib(vbo, pos_id, vidx++, &verts[tess->v2].co);
+ setAttrib(vbo, nor_id, vidx, &verts[tess->v3].no);
+ setAttrib(vbo, pos_id, vidx++, &verts[tess->v3].co);
+
+ if (tess->v4) {
+ setAttrib(vbo, nor_id, vidx,
&verts[tess->v1].no);
+ setAttrib(vbo, pos_id, vidx++,
&verts[tess->v1].co);
+ setAttrib(vbo, nor_id, vidx,
&verts[tess->v3].no);
+ setAttrib(vbo, pos_id, vidx++,
&verts[tess->v3].co);
+ setAttrib(vbo, nor_id, vidx,
&verts[tess->v4].no);
+ setAttrib(vbo, pos_id, vidx++,
&verts[tess->v4].co);
+ }
+ }
+
+ VertexBuffer_resize_data(vbo, vidx+1);
+
+ cache->triangles_with_normals = Batch_create(GL_TRIANGLES, vbo,
NULL);
+ }
+
+ return cache->triangles_with_normals;
+}
+
Batch *BKE_mesh_batch_cache_get_all_verts(Mesh *me)
{
MeshBatchCache *cache = mesh_batch_cache_get(me);
diff --git a/source/blender/draw/engines/clay/clay.c
b/source/blender/draw/engines/clay/clay.c
index b06d8c3497..efaec22c77 100644
--- a/source/blender/draw/engines/clay/clay.c
+++ b/source/blender/draw/engines/clay/clay.c
@@ -609,7 +609,7 @@ static void CLAY_create_cache(CLAY_PassList *passes,
CLAY_StorageList *stl, cons
/* Clay Pass */
{
- passes->clay_pass = DRW_pass_create("Clay Pass",
DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_LESS);
+ passes->clay_pass = DRW_pass_create("Clay Pass",
DRW_STATE_WRITE_COLOR);
stl->storage->ubo_current_id = 0;
}
diff --git a/source/blender/draw/engines/clay/shaders/clay_frag.glsl
b/source/blender/draw/engines/clay/shaders/clay_frag.glsl
index 7a38db35bc..c1fe2df531 100644
--- a/source/blender/draw/engines/clay/shaders/clay_frag.glsl
+++ b/source/blender/draw/engines/clay/shaders/clay_frag.glsl
@@ -62,13 +62,6 @@ vec3 get_view_space_from_depth(in vec2 uvcoords, in float
depth)
}
}
-/* TODO remove this when switching to geometric normals */
-vec3 calculate_view_space_normal(in vec3 viewposition)
-{
- vec3 normal = cross(normalize(dFdx(viewposition)), dfdy_sign *
normalize(dFdy(viewposition)));
- return normalize(normal);
-}
-
#ifdef USE_HSV
void rgb_to_hsv(vec3 rgb, out vec3 outcol)
{
@@ -167,15 +160,12 @@ void main() {
vec2 screenco = vec2(gl_FragCoord.xy) / screenres;
float depth = texture(depthtex, screenco).r;
- vec3 position = get_view_space_from_depth(screenco, depth);
- vec3 normal = calculate_view_space_normal(position);
-
/* Manual Depth test */
- /* Doing this test earlier gives problem with dfdx calculations
- * TODO move this before when we have proper geometric normals */
if (gl_FragCoord.z > depth + 1e-5)
discard;
+ vec3 position = get_view_space_from_depth(screenco, depth);
+
#ifdef USE_ROTATION
/* Rotate texture coordinates */
vec2 rotY = vec2(-matcap_rotation.y, matcap_rotation.x);
diff --git a/source/blender/draw/intern/draw_cache.c
b/source/blender/draw/intern/draw_cache.c
index 7d5dc6e6d8..55c07304ec 100644
--- a/source/blender/draw/intern/draw_cache.c
+++ b/source/blender/draw/intern/draw_cache.c
@@ -668,7 +668,7 @@ Batch *DRW_cache_surface_get(Object *ob)
BLI_assert(ob->type == OB_MESH);
Mesh *me = ob->data;
- surface = BKE_mesh_batch_cache_get_all_triangles(me);
+ surface = BKE_mesh_batch_cache_get_triangles_with_normals(me);
return surface;
}
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