diff options
Diffstat (limited to 'source/blender/sequencer/intern/render.c')
| -rw-r--r-- | source/blender/sequencer/intern/render.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/source/blender/sequencer/intern/render.c b/source/blender/sequencer/intern/render.c index 12d97d7e3e3..2246336369b 100644 --- a/source/blender/sequencer/intern/render.c +++ b/source/blender/sequencer/intern/render.c @@ -466,6 +466,45 @@ static void sequencer_thumbnail_transform(ImBuf *in, ImBuf *out) IMB_transform(in, out, transform_matrix, &source_crop, IMB_FILTER_NEAREST); } +/* Check whether transform introduces transparent ares in the result (happens when the transformed + * image does not fully cover the render frame). + * + * The check is done by checking whether all corners of viewport fit inside of the transformed + * image. If they do not the image will have transparent areas. */ +static bool seq_image_transform_transparency_gained(const SeqRenderData *context, Sequence *seq) +{ + Scene *scene = context->scene; + const int x = context->rectx; + const int y = context->recty; + + float seq_image_quad[4][2]; + SEQ_image_transform_final_quad_get(scene, seq, seq_image_quad); + for (int i = 0; i < 4; i++) { + add_v2_v2(seq_image_quad[i], (float[]){x / 2, y / 2}); + } + + return !isect_point_quad_v2((float[]){x, y}, + seq_image_quad[0], + seq_image_quad[1], + seq_image_quad[2], + seq_image_quad[3]) || + !isect_point_quad_v2((float[]){0, y}, + seq_image_quad[0], + seq_image_quad[1], + seq_image_quad[2], + seq_image_quad[3]) || + !isect_point_quad_v2((float[]){x, 0}, + seq_image_quad[0], + seq_image_quad[1], + seq_image_quad[2], + seq_image_quad[3]) || + !isect_point_quad_v2((float[]){0, 0}, + seq_image_quad[0], + seq_image_quad[1], + seq_image_quad[2], + seq_image_quad[3]); +} + static void sequencer_preprocess_transform_crop( ImBuf *in, ImBuf *out, const SeqRenderData *context, Sequence *seq, const bool is_proxy_image) { @@ -490,6 +529,13 @@ static void sequencer_preprocess_transform_crop( const eIMBInterpolationFilterMode filter = context->for_render ? IMB_FILTER_BILINEAR : IMB_FILTER_NEAREST; IMB_transform(in, out, transform_matrix, &source_crop, filter); + + if (!seq_image_transform_transparency_gained(context, seq)) { + out->planes = in->planes; + } + else { + out->planes = R_IMF_PLANES_RGBA; + } } static void multibuf(ImBuf *ibuf, const float fmul) @@ -525,6 +571,10 @@ static void multibuf(ImBuf *ibuf, const float fmul) rt_float += 4; } } + + if (ELEM(ibuf->planes, R_IMF_PLANES_BW, R_IMF_PLANES_RGB) && fmul < 1.0f) { + ibuf->planes = R_IMF_PLANES_RGBA; + } } static ImBuf *input_preprocess(const SeqRenderData *context, @@ -1804,6 +1854,20 @@ static ImBuf *seq_render_strip_stack(const SeqRenderData *context, early_out = seq_get_early_out_for_blend_mode(seq); + /* Early out for alpha over. It requires image to be rendered, so it can't use + * `seq_get_early_out_for_blend_mode`. */ + if (out == NULL && seq->blend_mode == SEQ_TYPE_ALPHAOVER && seq->blend_opacity == 100.0f) { + ImBuf *test = seq_render_strip(context, state, seq, timeline_frame); + if (ELEM(test->planes, R_IMF_PLANES_BW, R_IMF_PLANES_RGB)) { + early_out = EARLY_USE_INPUT_2; + } + else { + early_out = EARLY_DO_EFFECT; + } + /* Free the image. It is stored in cache, so this doesn't affect performance. */ + IMB_freeImBuf(test); + } + switch (early_out) { case EARLY_NO_INPUT: case EARLY_USE_INPUT_2: @@ -1828,6 +1892,7 @@ static ImBuf *seq_render_strip_stack(const SeqRenderData *context, } break; } + if (out) { break; } |